You may have received no welfare benefits, but
I'm calling BS that you did not have a support network that served the same purpose.
What disabilities did you or your family members have? What financial emergencies (extended periods of unemployment due to economic downturns, car dying, housing costs rising) or expensive medical emergencies did you and your family endure? Were you ever seriously injured and unable to work for an extended period of time? Who paid for your higher education? Where were you educated and what if any degrees do you have? How much discrimination did you face due to the colour of your skin, your name, your residential address, your age, your sex, your gender identity or sexuality? What was the job market like in your area, how does that compare to other parts of the US, particularly the parts where poverty is rampant? What is the lead content of the public drinking water where you live? How many times a week are you detained by police?
Also, what year were you born? what was the economic and social situation like at that time? How has that changed since you've become an adult and
There are a myriad of circumstances outside of an individual's control which can have a huge impact on their life and ability to make a living and care for a family. Privilege and luck are factors that no one is entirely free of, so claims of being entirely and exclusively "self-made" are nearly always ignorant at best. Every "self-made" person has relied to a great extent on favourable circumstances and existing social networks, despite their unwillingness to acknowledge that fact.
Can't let your comments about teacher salaries slide, either. The gap between a teacher's salary and an average salary a few decades ago was a mere 7%. That gap is now 17%. In the '60s, the average female teacher's salary was 14.7%
higher than the average for female workers in equivalent jobs (office work). It may have been possible with the higher comparable salary and lower cost of living back then for a single mother to raise one or more children without some form of outside assistance (which I strongly doubt), but it's becoming drastically less so as time goes on, pay gaps widen, and costs of living continue to rise.
http://neatoday.org/2018/09/06/teacher-pay-gap-reaches-record-high/